T&L Publications

To Everyone:<p>I want to thank everyone for their very informative responses to my question.

Dear Edd:<p>You have a good memory! It's taken me months to gain access to an oscilloscope. I finally found a technical school in the area that has been kind enough to let me use the scopes in their lab to do the tests on my project. Thus far, I've only been able to learn the bare essentials - and p...

I am a novice, and am learning to use an oscilloscope that I have access to in order to troubleshoot a wireless remote control project (transmitter & receiver)I've built from an article featured in Nuts & Volts Magazine (April 2002).The remote control unit can be used to turn on, say a livin...

Haklesup,<p>Thanks for your reply. Maybe you can clear up some questions I have: 1) what is a "hot" wire?; and 2)why is one of the wires from the transformer black and white stripped and the other solid black?

I have a step-down wall transformer that reduces household AC voltage to 12AC. It has a black wire and one that is black and white stripped. How can I test to see which wire is the positive one? <p>I put the red lead of my very inexpensive multimeter to the stripped wire and the black lead to the bl...

Edd,<p>Correction -- I meant pin 2, not pin 3.

Edd,<p>How do I confirm that pins 3 and 8 are at the low position?

Jwax<p>The circuit incorporates a linear regulator chip that provides 5 volts to power the circuit.

Edd, <p>Both RF modules are made by Linx (tranmitter part no. TXM-418-LC; receiver part no. RXM-418-LC-S). I downloaded and read the tech sheets on both modules, including their pin descriptions, trying to gain any helpful information and was not able to find anything that was helpful to me. <p>As f...

I've built a transmitter and a receiver for a remote control unit featured in a Nuts and Volts article (April 2002), "Build a 418 MHz Wireless Remote Control," and unfortunately can't get it to work. <p>Although the article calls for construction on PC boards, I've constructed the transmit...

Thanks for your help.<p>Zeek

I've seen reference to "Vdd" and "Vss," but I'm not sure of the meaning of these terms. Can someone tell me what they mean?<p>Tbanks.

Thanks fellas for the good advice. That $2.99 special sounds awfully tempting.

Can anyone out there give me some tips on buying a multimeter in terms of features to look for, brand, type, etc. I'm a beginner and am building two electronic circuits (DC) for the first time. One circuit will run on a 3 volt battery and the other will run on 12 volts DC. The instructions recommend...

I forgot to mention -- for what it's worth -- this article appeared in Nuts & Volts (April, 2002). <p>Zeek